Automatic brake for vehicles.



G. W. FISHER.

AUTOMATIC BRAKE FOB. VEHICLES.

APPLICATION FILED FEB.11, 1909.

Patented Feb. 8, 1910.

2 BHEETS-SHEBT 1.

G." W. FISHER. AUTOMATIC BRAKE FOR VEHICLES.

APPLICATION FILED PEB.11, 1909.

' Patented Feb. 8, 1910. 2 SHEETS-SHEET 2.

III;

- To all whom i t may-concern: i

. .ST- H A? enonen w. FISHER, or WESTERN, RUN, MARYLAND.

AUTOMATIC BRAKE FOR VEHICLES.

Be it known that I, GEORGE V. FISHER, citizen of the United States,residing at XVestern Run, in the county of Baltimore and State ofMaryland, have invented certain new and useful Improvements in AutomaticBrakes for Vehicles, of which the following is a specification. 1

My invention relates to improvements in automatic brakes forvehicle's,.and the object thereof is to improve and simplii Y theconstruction over the existing prior state of the art; and the inventionconsists in the novel construction and combination of parts as will behereinafter more in detail described and the asserted noveltyspecifically claimed.

I have fully and clearly illustrated my invention in the accompanyingdrawings, in which,

Figure 1 represents a top or plan view of my invention to which myimprovements are applied. Fig. 2 represents a longitudinal sideelevation of the same, and Figs. 3 and t are also plan views thereof.

Similar letters of reference indicate corresponding parts in the severalfigures.

Referring to the drawings: A, A designate the forward wheels and B, Bthe rear wheels of a wagon mounted upon the forward and rear axles C andC respectively in the ordinary manner.

D designates the reach or connecting bar connecting the forward and rearaxles together, openings 0 being formed centrally between the bolsterand forward axle O and through which said reach is projected, the reachand also the bolster of the forward axle C being provided with aperforation d for the reception of the usual king bolt (Z for theturning thereon of the forward axle, bolster and reach of the wagon.

E, E designate the hounds of the forward axle which are passedtransversely through the opening, between the bolster and the forwardaxle C and in which they are held at this point, the forward ends ofsaid hounds being provided with a slotted clip E through which a tongueE is passed and secured within the clip by means of a screw 6 passedthrough perforations e, 6 formed in said clip and the rear end of thetongue, a tongue cap being secured to the forward end of the tongue toadmit of the engagement of a chain E and twin hooks F, F, the latterbeing pivotally secured to this end of Specification f Letters Patent.Application filed February 11, 1909. Serial No. 477,351.

'bar J having brake shoes J, J

' Patented Feb.'s,.191o.

the tongue, as more clearly shownin Fig. 2

are transversely secured short bars and g? -which serveas a support fora number of :toggle jointed levers h, h,h if whichare pivotally securednear their ends to said bars g and g the ends of said levers h, kengaging parallel slots 70*, if formed in and near the forward end of abar I secured centrally and at right angles to a brake shoe its ends.

-K, K designate short pins having their ends secured in the side bar 9'and the inner parallel bar 9* near the ends of said bars 011 whichspiral springs K, K loosely play backwardly and forwardly, these pinsalso being passed through perforations in the brake shoe bar for apurpose which will hereinafter more fully appear.

L, L designate the rear hounds, the rear ends of which are secured andpassed between the rear axle C and bolster of the wagon, the forwardends of the hounds converging to the reach D and secured within theslotted clip T.

O, O designate eye-bolts secured to the rear axle C in any suitablemanner. Through these eye-bolts O, O is transversely passed a roller Pfor side locking the wagon.

Q, designates a hand-lever pivotally secured to the rear axle C throughthe medium of an eye-bolt plate R, this lever having at its pivotal enda right angular bifurcated projection formed integral therewith having aperforation therein through which a pivot is passed pivotally connectingthe right. angular bifurcated projection with the slot in the bar I.

S designates a lug secured midway the length of the roller P having aneye 39 therein through which is passed a pin Q, for the purpose ofconnecting thereto a hook q bifurcated at its rear end, the lug S beingpassed into this bifurcation the free end of this hook engages thecentral slot in the bar I heretofore described. To one end of the rollerP is detachably secured a handlever T by means of which through themedium of the roller P the hook g is manipulated for operating the bar Iindependsecured to ently of the automatically disposed drawthetoggle-jointed levers h, k connecting with the levers h and k of thehand operated bar I. sections U, U,- the ends of which are slidablypassed through loops V, V, over-v lapped and adjusted and held inadjustment by means of a pivot pin U The forward end of the section U ispivotally connected to the section U so that when it is necessary toadjust the overlapping sections the pivot pin U is withdrawn from thesections. 7 The forward end of the upper section Uis bifurcated for thereception of the rear end of a slotted angular bar W which is pivotallyconnected to the forward end of said section by means of a pivot pin XV.I

W designates a bolster plate rigidly-secured t0 the top of the bolsterand provided centrally with a perforation (Z which is in alinement withthe perforation in the bolster hereinafter described, and as previouslystated, is for the reception of the king bolt. This king bolt cl engagesthe slot in the rear end of the angular portion or section of thedraw-bar. The lower angle of this angular section terminates in a rodportion w.

X designates a slotted eye-bolt secured to the underside of the tonguethrough which the rod portion to is passed, and which serves as a guidefor said rod. This rod or rod portion of the draw-bar is bifurcated atits extreme outer and forward end, and pivotally connected therewith arethe twin hooksF F by means of a pivot pin X which is passed throughalined perforations both in the bifurcated end of the rod and also inalined perforations in the said hooks.

Y designates a coiled spring, one end of which is secured to the slottedeye-bolt, its opposite end being looped and through which is also passedthe pivot thus connecting said spring with the bifurcation in the rodportion of the draw-bar and the levers F F.

Z designates a ratchet sector having its ends secured to the ends of therear hounds.

Z designates a brace having one end secured to the rear axle C and itsopposite end secured centrally to the ratchet sector.

Z designates a short blade secured to the underside of the lever whichengages the ratchet sector by means of which the bar I and its mechanismis operated.

From the foregoing construction herein shown and described it will beobvious that my device has the advantage of producing This draw-bar U ismade sesame .a triple. motion. Two motions are given to the brake shoesby the rear and side hand levers and by these motions the shoes of thebrake bar are applied and locked against the rear wheels when the horseis descending grades and which if necessary will stop the wagoninstantly. When the'mechanism is operated automatically by means of thehorses being controlled in descending grades the wheelswill' graduallybelocked bythe'brakeshoes, and when the hors s are ascending thebrakeshoes will be graduallyreleased from the wheels.

By means of the twinhooks detachably secured to the forward end of thetongue and the tongue chains securedto the tongue cap I am enabled bythis means to back an; load anywhere and underany circumstances, andfurther by the use of this means after backing up a load the twin hooksregain their normal position.

By adjusting the draw-bar which is made in two parts overlapping eachother the wagon gear can be shortened or lengthened at pleasure. Whentwo horses are controlled there can be eight tons hauled down a grade aseasily as four tons.

My brake is strong and durable in its construction and in case of arunaway by the horses the stopping of the horses can be easilycontrolled.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is,

1. The combination with the rear axle, wheels, rear hounds, bolster, aneye-bolt plate secured to the bolster, a hand lever pivotally secured tothe outer end of said plate, a short arm formed integral and at rightangles to said hand-lever, the end of the short arm engaging in a slotof a rear draw-bar, a sector ratchet secured to the bolster within whichthe hand lever engages, eye-bolts secured to the inner side of thebolster, a roller loosely passed through said eyebolts, a hand-leverdetachably secured to the end of the roller, a lug centrally secured tothe roller, a bifurcated hook, the rear end of which engages the lug,the hook portion engaging the central slot in the rear draw-bar, therear draw-bar having parallel slots in its forward end, the pivotedtoggle levers, the free ends of the short and rear levers engaging theparallel slots in the forward end of the rear drawbar, and the oppositeends of the longer levers pivotally secured to the rear end of theforward adjustable draw-bar.

2. The combination with the rear axle, wheels, rear hounds, bolster, aneye bolt plate secured to the bolster, a hand lever pivotally secured tothe outer end of said plate, a short arm formed integral and at rightangles to said hand lever, the end of the short arm engaging in the rearslot of 'to the bolster within which the hand lever a rear draw-bar, asector ratchet secured to the bolster within which the hand-leverengages, eye-bolts secured to the inner side of the bolster, a rollerloosely passed through i said eye-bolts, a hand-lever detachably securedto the end of said roller, a lug centrally secured to the roller, abifurcated hook, the rear end of which engages the lug, the hook portionengaging the central slot in the rear draw-bar, the rear draw-bar lhaving parallel slots in its forward end, the pivoted toggle levers, thefree ends of the i short and rear levers engaging the parallel slots inthe forward end of the rear drawi bar, and the opposite ends of thelonger levers pivotally secured to the rear end of the forwardadjustable draw-bar; of the frame work, of the brake mechanism securedto the rear hounds composed of the side and end bars and arallel innerbar, transverse short bars having their ends secured to the innerparallel bar and one of the side bars, pins having their ends secured toone of the side bars and inner parallel bar, spiral springs operativelyand loosely encircling said pins, the pins being passed through thebrake-shoe bar, and shoes secured to the ends of said bar.

8. The combination with the rear axle, wheels, rear hounds, bolster, aneye-bolt plate secured to the bolster, a hand lever pivotally secured tothe outer end of said plate, a short ,arm formed integral and at rightangles to said hand-lever, the ends of the short arm engaging in therear slot of the rear draw-bar, a sector ratchet secured engages,eye-bolts secured to the inner side of the bolster, a roller looselypassed through said eye-bolts, a hand-lever detachably secured to theend of the roller, a lug centrally secured to the roller, a bifurcatedhook, the rear end of which engages the lug, 1

1 the hook portion engaging the central slot in the rear draw-bar havingparallel slots in its forward end, the pivoted toggle levers, the freeends of the short and rear levers engaging the parallel slots in theforward end of the rear draw-bar, and the opposite ends of the longerlevers pivotally secured to the rear end of the forward adjustabledraw-bar, the frame-work of the brake mechanism secured to the rearhounds composed of the side and end bars and parallel inner bar,transverse short bars having their ends secured to the inner parallelbar and one of the side bars, pins having their ends secured to one ofthe side bars and inner parallel bar, spiral springs operatively andloosely encircling said pins, the pins being passed through the brakeshoe bar, the brake shoe bar, shoes secured to the end of said bar; ofan angular adjustable sectional draw-bar having over-lapping ends andprovided with a slot, a bolster having a bolster plate secured theretohaving alined perforations both-in said plate and bolster, a king pinpassed within said perforations and engaging the slot in the adjustableangular sectional draw-bar, a tongue cap secured to the end of thetongue, twin hooks pivotally secured to the end of the tongue andengaging the tongue cap and tongue chain, the latter being rigidlysecured to the tongue cap, the forward hounds within a slotted clip, aslotted eye-bolt secured near the end and under side of tongue, and acoil spring having one end secured to the slotted eyebolt and itsopposite end secured pivotally to the twin hooks, substantially asdescribed.

In testimony whereof I affix my signature, in presence of two witnesses.

GEORGE W. FISHER. Witnesses C. M. GOULD, T. P. BRITT.

